CPBuddy by Ayush Jha

Required permissions:

• Display notifications to you
• Access your data for sites in the codeforces.com domain
• Access your data for sites in the codeforces.ml domain
• Access your data for sites in the leetcode.com domain
• Access your data for atcoder.jp
• Access your data for codeforces.com
• Access your data for cses.fi
• Access your data for hackerrank.com
• Access your data for hydro.ac
• Access your data for leetcode.com
• Access your data for localhost
• Access your data for m1.codeforces.com
• Access your data for m2.codeforces.com
• Access your data for m3.codeforces.com
• Access your data for www.hackerrank.com
• Access your data for www.luogu.com.cn
• Access your data for codeforces.ml

Data collection:

• The developer says this extension doesn't require data collection.